Bolt-action rifle and firing mechanism therefor



Jan. 21, 1958 I c. A. PERRY ETAL 2,820,313

BOLT-ACTION RIFLE AND FIRING MECHANISM THEREFOR 2 Sheets-Sheet 1 FiledFeb. 19, 1954 I r v 9R5 W M WIZEW ATTORNEYS Jan 21, 1958 c. A. P'ERR'YYETAL I BOLT-ACTION RIFLE AND FIRING MECHANISM TI-QIEREFOR Filed Feb. 19,1954 2 Sheets-Sheet 2 United tates BOLT-ACTION RIFLE AND FmING MECHANISMTHEREFOR Application February 19, 1954, Serial No. 411,525

3 Claims. (CI. 42-16) This invention is concerned with improvements inor relating to bolt-action rfles and it is an object of the invention toprovide an improved method of removing the bolt from the rifle.

According to this invention the bolt of a bolt action rifle is providedin its forward-end portion with a slot which is arranged to be engaged,when the bolt is at its 'normal limit of rearward movement, by a part ofa spring-urged sear, disengagement of the bolt to allow further rearwardmovement and direct removal from the rifle being effected by rearwardmovement of the trigger which permits disengagement of the scar and alsorestrains the spring-urge tending to effect its re-engagement.

The invention will now be particularly described with reference to theaccompanying drawings in which:

Fig. 1 is a sectional view of the trigger mechanism of a bolt actionrifle;

Fig. 2 is a partly sectional view of the mechanism with the bolt in itsrearward position;

Fig. 3 is a diagrammatic view of some of the parts shown in Fig. 2 withthe trigger drawn rearwardly.

Fig. 4 is a view of part of the bolt from underneath;

Fig. 5 is a section through the part shown in Fig. 4.

A bolt-action rifle according to this particular construction isprovided with a hollow bolt 1 there being suitably disposed within thebolt a firing pin 3 to which is connected a cocking piece 5. Arelatively strong spring 7 is located within the bolt one end of suchspring abutting against the rear portion 9 of the bolt and the other endof the spring abutting against a projection 11 on the firing pin. Theforward end portion of the bolt is provided with slot 13 formed with arecess 15.

Below the rear end portion of the bolt (considered in its closedposition) there is located a pivotally-mounted sear 17 which iscontacted and upwardly urged towards the bolt by a spring-loaded lever29, the spring 35 of which abuts against a housing member 37, while atrigger catch 25 loaded by a spring 19 has an upper end 26 which isadapted to engage a stop 27 formed on the lever 29. The forward endportion of the sear is provided with a small upwardly-extending portion21 which is adapted to engage the surface of the bolt and to engage therecess 15 in the aforementioned slot 13 in the bolt under springpressure as the bolt is drawn rearwardly. This provides a positive stopfor the bolt and prevents withdrawal thereof from the rifle. By reasonof the shape of the slot forward movement of the bolt to its cockedposition from this rearward position is not impeded.

In the cocked position of the trigger mechanism for fitinx the rifle, asshown in Fig. 1, the sear 17 engages atent G 2,820,313 Patented Jan. 21,1958 ice with the cocking piece 5, the sear being held in the cockedposition by the stop 27 on the spring-loaded lever 29 contacting withthe trigger catch 25. When the trigger 30 is pulled, the projection 31thereon causes the pivotally mounted catch 25 to be turned against itsspring 19, thereby releasing the catch from its engagement with the stop27. The catch then passes through the slot 33 in the lever 29 permittingthe sear 17 to be depressed and so release the firing pin 3 under theaction of the spring 7.

On unlocking and drawing the bolt 1 rearwardly for the ejection of aspent cartridge, its normal limit of rearward movement is controlled bythe engagement of the portion 21 of the sear 17 with the slot 13 in thebolt, as seen in Fig. 2, the sear being held in engagement with the boltthrough the medium of the spring-loaded lever 29.

When, however, it is desired to remove the bolt 1 from the rifle, thetrigger is pulled and held to release the sear 17, as seen in Fig. 3. Onpulling the trigger with the mechanism in the position shown in Fig. 2,the trigger catch 25 passes through the slot 33 in the lever 29, and byvirtue of an inclined face 28 on the upper end 26 of the catch, thelever 29, on being depressed by the sear 17 by a slight forward movementof the bolt, is held by the catch in the depressed position, therebypermitting the sear 17 to remain clear of the bolt 1, which can then bewithdrawn from the rifle.

Having thus described our invention, what we claim as new and desire tosecure by Letters Patent is:

1. A bolt action rifle comprising a bolt movable rearwardly into openposition and having a slot in its forward end portion, a sear, aspring-loaded lever to actuate the sear which urges the sear intoengagement with the bolt during its rearward movement and intoengagement with said slot when the bolt is at its normal limit ofrearward movement to prevent removal of the bolt, a spring-loaded catchmember engageable with said lever, a trigger pivoted on the rifle, andmeans operative by depression of the trigger to hold the lever in adepressed position by the catch member to thereby prevent the sear fromengaging with said slot during rearward movement of the bolt and whilethe trigger is held depressed and thereby allow the bolt to be removed.

2. A bolt action rifle as defined in claim 1, wherein said lever has aslot therein in which said catch member is operable, and including astop in said slot against which the catch member abuts to lock the searin engaged relation with the slot in the bolt.

3. A bolt action rifle as defined in claim 2, wherein said catch memberis released from said lever by actuation of the trigger to allowdepression of the sear by rearward movement of the bolt, and said catchmember is provided with means for holding said lever depressed while thetrigger is retained in its depressed position.

References Cited in the file of this patent UNITED STATES PATENTS157,783 Berdan Dec. 15, 1874 413,079 Koka Oct. 15, 1889 853,073 EsserMay 7, 1907 1,349,675 Johnson Aug. 17, 1920 1,542,477 Savage June 16,1925 2,659,994 Yale Nov. 24, 1953

